/// <summary>
/// TXT records contain additional attributes of services
/// </summary>
/// <param name="service"></param>
/// <param name="player"></param>
private void processTXTrecord(NetService service, JSONSrcSink player)
{
byte[] txt = service.TXTRecordData;
IDictionary dict = NetService.DictionaryFromTXTRecordData(txt);
if (dict == null)
{
return;
}
// Remove all sessions from this Player so that we can add all the new entries from this TXT record
ArrayList itemsToRemove = new ArrayList();
lock (sessions.SyncRoot) {
foreach (JSONSession nxtSess in sessions)
{
if (service.Name.Equals(nxtSess.sinkId))
{
itemsToRemove.Add(nxtSess);
}
}
;
if (itemsToRemove.Count > 0)
{
foreach (JSONSession sess in itemsToRemove)
{
sessions.Remove(sess);
}
itemsToRemove.Clear();
}
}
foreach (DictionaryEntry kvp in dict)
{
String key = ((String)kvp.Key).ToUpper();
String value = null;
try {
value = Encoding.UTF8.GetString((byte[])kvp.Value);
} catch {
// All displaycast values are strings!!
continue;
}
switch (key)
{
case "NAME":
player.description = value;
break;
case "OSVERSION":
player.os = value;
break;
case "MACHINENAME":
player.machineName = value;
break;
case "LOCATIONID":
player.locationID = value;
break;
case "VERSION":
Trace.WriteLine("DEBUG: No use for version info in the API");
// player.version = Convert.ToDouble(value);
break;
case "IMAGEPORT":
Trace.WriteLine("DEBUG: No use for image port in the session object");
// player.imagePort = Convert.ToInt32(value);
break;
case "USERID":
player.userName = value;
break;
case "NEARBY":
player.nearBy = value;
break;
case "MASKPORT":
Trace.WriteLine("DEBUG: No use for Mask port info in the API");
break;
case "BLUETOOTH":
Trace.WriteLine("DEBUG: No use for Bluetooth ID's in the API");
break;
case "MASKSCREEN":
try {
char[] separator = { ' ', 'x' };
String[] words = value.Split(separator);
player.maskX = Convert.ToInt32(words[0]);
player.maskY = Convert.ToInt32(words[1]);
player.maskWidth = Convert.ToInt32(words[2]);
player.maskHeight = Convert.ToInt32(words[3]);
} catch (FormatException) {
player.maskX = player.maskY = player.maskWidth = player.maskHeight = 0;
}
break;
default:
if (key.StartsWith("SCREEN")) // Could be screen0, screen1 etc.
{
Rectangle oldRect = new Rectangle(player.x, player.y, player.width, player.height);
char[] separator = { ' ', 'x' };
String[] words = value.Split(separator);
Rectangle newRect = new Rectangle();
try {
newRect.X = Convert.ToInt32(words[0]);
newRect.Y = Convert.ToInt32(words[1]);
newRect.Width = Convert.ToInt32(words[2]);
newRect.Height = Convert.ToInt32(words[3]);
} catch (FormatException) {
continue;
}
oldRect = Rectangle.Union(oldRect, newRect);
player.x = oldRect.X;
player.y = oldRect.Y;
player.width = oldRect.Width;
player.height = oldRect.Height;
}
else // Sessions
{
char[] separator = { ' ' };
String[] words = value.Split(separator);
JSONSession sess = null;
if (words.Length == 8)
{
// This shouldn't match anymore because we remove all sessions involving this player
foreach (JSONSession nxtSess in sessions)
{
if (key.Equals(nxtSess.id))
{
sess = nxtSess;
break;
}
}
;
if (sess == null)
{
sess = new JSONSession();
sess.id = key;
sessions.Add(sess);
}
;
sess.srcId = words[0];
sess.sinkId = words[1];
try {
sess.x = Convert.ToInt32(words[2]);
sess.y = Convert.ToInt32(words[3]);
sess.width = Convert.ToInt32(words[4]);
sess.height = Convert.ToInt32(words[5]);
sess.iconified = Convert.ToInt32(words[6]);
sess.fullScreen = Convert.ToInt32(words[7]);
} catch (FormatException) {
// Would rather have all correct sessions than partially correct sessions
sessions.Remove(sess);
}
Trace.WriteLine("DEBUG: " + sess.id + " at " + sess.width + " x " + sess.height);
}
else
{
Trace.WriteLine("FATAL: Unknown attribute " + key + ":" + value);
}
}
break;
}
}
}
/// <summary>
/// Bonjour callback. Remember resolved services and initiate monitoring TXT record updates
/// </summary>
/// <param name="service"></param>
private void didResolvePlayers(NetService service)
{
JSONSrcSink newPlayer = new JSONSrcSink();
newPlayer.id = service.Name;
if (service.TXTRecordData != null)
{
processTXTrecord(service, newPlayer);
}
// Remove any previous remembered entries
ArrayList list = getList(service.Type);
lock (list.SyncRoot) {
ArrayList toRemove = new ArrayList();
foreach (JSONSrcSink item in list)
{
if (item.id.Equals(service.Name))
{
toRemove.Add(item);
}
}
if (toRemove.Count > 0)
{
foreach (JSONSrcSink item in toRemove)
{
list.Remove(item);
}
toRemove.Clear();
}
list.Add(newPlayer);
}
// Store the service in either sink or sources.
ArrayList services = null;
if (service.Type.StartsWith(Shared.DisplayCastGlobals.PLAYER) || service.Type.StartsWith(Shared.DisplayCastGlobals.ARCHIVER))
{
services = sinkServices;
}
if (service.Type.StartsWith(Shared.DisplayCastGlobals.STREAMER))
{
services = sourceServices;
}
Debug.Assert(services != null);
// First remove any old entries
lock (services.SyncRoot) {
ArrayList toRemove = new ArrayList();
foreach (NetService item in services)
{
if (item.Name.Equals(service.Name))
{
toRemove.Add(item);
}
}
if (toRemove.Count > 0)
{
foreach (NetService item in toRemove)
{
services.Remove(item);
}
toRemove.Clear();
}
// Add the current service
services.Add(service);
}
service.DidUpdateTXT += new NetService.ServiceTXTUpdated(didUpdateTXT);
service.StartMonitoring();
}
/// <summary>
/// Bonjour callback. Remember resolved services and initiate monitoring TXT record updates
/// </summary>
/// <param name="service"></param>
private void didResolvePlayers(NetService service)
{
JSONSrcSink newPlayer = new JSONSrcSink();
newPlayer.id = service.Name;
if (service.TXTRecordData != null)
processTXTrecord(service, newPlayer);
// Remove any previous remembered entries
ArrayList list = getList(service.Type);
lock (list.SyncRoot) {
ArrayList toRemove = new ArrayList();
foreach (JSONSrcSink item in list) {
if (item.id.Equals(service.Name))
toRemove.Add(item);
}
if (toRemove.Count > 0) {
foreach (JSONSrcSink item in toRemove)
list.Remove(item);
toRemove.Clear();
}
list.Add(newPlayer);
}
// Store the service in either sink or sources.
ArrayList services = null;
if (service.Type.StartsWith(Shared.DisplayCastGlobals.PLAYER) || service.Type.StartsWith(Shared.DisplayCastGlobals.ARCHIVER))
services = sinkServices;
if (service.Type.StartsWith(Shared.DisplayCastGlobals.STREAMER))
services = sourceServices;
Debug.Assert(services != null);
// First remove any old entries
lock (services.SyncRoot) {
ArrayList toRemove = new ArrayList();
foreach (NetService item in services) {
if (item.Name.Equals(service.Name))
toRemove.Add(item);
}
if (toRemove.Count > 0) {
foreach (NetService item in toRemove)
services.Remove(item);
toRemove.Clear();
}
// Add the current service
services.Add(service);
}
service.DidUpdateTXT += new NetService.ServiceTXTUpdated(didUpdateTXT);
service.StartMonitoring();
}
/// <summary>
/// TXT records contain additional attributes of services
/// </summary>
/// <param name="service"></param>
/// <param name="player"></param>
private void processTXTrecord(NetService service, JSONSrcSink player)
{
byte[] txt = service.TXTRecordData;
IDictionary dict = NetService.DictionaryFromTXTRecordData(txt);
if (dict == null)
return;
// Remove all sessions from this Player so that we can add all the new entries from this TXT record
ArrayList itemsToRemove = new ArrayList();
lock (sessions.SyncRoot) {
foreach (JSONSession nxtSess in sessions) {
if (service.Name.Equals(nxtSess.sinkId))
itemsToRemove.Add(nxtSess);
};
if (itemsToRemove.Count > 0) {
foreach (JSONSession sess in itemsToRemove)
sessions.Remove(sess);
itemsToRemove.Clear();
}
}
foreach (DictionaryEntry kvp in dict) {
String key = ((String)kvp.Key).ToUpper();
String value = null;
try {
value = Encoding.UTF8.GetString((byte[])kvp.Value);
} catch {
// All displaycast values are strings!!
continue;
}
switch (key) {
case "NAME":
player.description = value;
break;
case "OSVERSION":
player.os = value;
break;
case "MACHINENAME":
player.machineName = value;
break;
case "LOCATIONID":
player.locationID = value;
break;
case "VERSION":
Trace.WriteLine("DEBUG: No use for version info in the API");
// player.version = Convert.ToDouble(value);
break;
case "IMAGEPORT":
Trace.WriteLine("DEBUG: No use for image port in the session object");
// player.imagePort = Convert.ToInt32(value);
break;
case "USERID":
player.userName = value;
break;
case "NEARBY":
player.nearBy = value;
break;
case "MASKPORT":
Trace.WriteLine("DEBUG: No use for Mask port info in the API");
break;
case "BLUETOOTH":
Trace.WriteLine("DEBUG: No use for Bluetooth ID's in the API");
break;
case "MASKSCREEN":
try {
char[] separator = { ' ', 'x' };
String[] words = value.Split(separator);
player.maskX = Convert.ToInt32(words[0]);
player.maskY = Convert.ToInt32(words[1]);
player.maskWidth = Convert.ToInt32(words[2]);
player.maskHeight = Convert.ToInt32(words[3]);
} catch (FormatException) {
player.maskX = player.maskY = player.maskWidth = player.maskHeight = 0;
}
break;
default:
if (key.StartsWith("SCREEN")) { // Could be screen0, screen1 etc.
Rectangle oldRect = new Rectangle(player.x, player.y, player.width, player.height);
char[] separator = { ' ', 'x' };
String[] words = value.Split(separator);
Rectangle newRect = new Rectangle();
try {
newRect.X = Convert.ToInt32(words[0]);
newRect.Y = Convert.ToInt32(words[1]);
newRect.Width = Convert.ToInt32(words[2]);
newRect.Height = Convert.ToInt32(words[3]);
} catch (FormatException) {
continue;
}
oldRect = Rectangle.Union(oldRect, newRect);
player.x = oldRect.X;
player.y = oldRect.Y;
player.width = oldRect.Width;
player.height = oldRect.Height;
} else { // Sessions
char[] separator = { ' ' };
String[] words = value.Split(separator);
JSONSession sess = null;
if (words.Length == 8) {
// This shouldn't match anymore because we remove all sessions involving this player
foreach (JSONSession nxtSess in sessions) {
if (key.Equals(nxtSess.id)) {
sess = nxtSess;
break;
}
};
if (sess == null) {
sess = new JSONSession();
sess.id = key;
sessions.Add(sess);
};
sess.srcId = words[0];
sess.sinkId = words[1];
try {
sess.x = Convert.ToInt32(words[2]);
sess.y = Convert.ToInt32(words[3]);
sess.width = Convert.ToInt32(words[4]);
sess.height = Convert.ToInt32(words[5]);
sess.iconified = Convert.ToInt32(words[6]);
sess.fullScreen = Convert.ToInt32(words[7]);
} catch (FormatException) {
// Would rather have all correct sessions than partially correct sessions
sessions.Remove(sess);
}
Trace.WriteLine("DEBUG: " + sess.id + " at " + sess.width + " x " + sess.height);
} else
Trace.WriteLine("FATAL: Unknown attribute " + key + ":" + value);
}
break;
}
}
}
/// <summary>
/// Process the current HTTP/REST request
/// </summary>
/// <param name="Context">returned from the asynchronous httplistener</param>
protected virtual void ProcessRequest(HttpListenerContext Context)
{
HttpListenerRequest request = Context.Request;
HttpListenerResponse response = Context.Response;
String cmd = request.Url.LocalPath.Substring(1).ToUpper();
String responseString = null;
response.StatusCode = (int)HttpStatusCode.OK;
// Giant command processing switch
switch (cmd)
{
case "WHOAMI":
IPAddress who = request.RemoteEndPoint.Address;
JSONwhoami ami = new JSONwhoami();
Trace.WriteLine("DEBUG: I am " + who.ToString() + " " + request.Headers);
foreach (NetService service in sinkServices)
{
IList addresses = service.Addresses;
foreach (IPEndPoint addr in addresses)
{
Trace.WriteLine("DEBUG: am I sink " + addr.Address.ToString());
if (who.Equals(addr.Address))
{
if (service.Type.StartsWith(Shared.DisplayCastGlobals.PLAYER))
{
ami.player = service.Name;
}
if (service.Type.StartsWith(Shared.DisplayCastGlobals.ARCHIVER))
{
ami.archiver = service.Name;
}
}
}
}
foreach (NetService service in sourceServices)
{
IList addresses = service.Addresses;
foreach (IPEndPoint addr in addresses)
{
Trace.WriteLine("DEBUG: am I source " + addr.Address.ToString());
if (who.Equals(addr.Address))
{
if (service.Type.StartsWith(Shared.DisplayCastGlobals.STREAMER))
{
ami.streamer = service.Name;
}
}
}
}
responseString = serializer.Serialize(ami);
break;
case "LISTPLAYERS":
responseString = serializer.Serialize(players);
break;
case "LISTARCHIVERS":
responseString = serializer.Serialize(archivers);
break;
case "LISTSTREAMERS":
responseString = serializer.Serialize(streamers);
break;
case "LISTSESSIONS":
responseString = serializer.Serialize(sessions);
break;
case "STATUS":
if ((request.Url.Query == null) || (request.Url.Query.Length < 2))
{
response.StatusCode = (int)HttpStatusCode.BadRequest;
response.StatusDescription = DisplayCastGlobals.CONTROL_USAGE_STATUS;
responseString = JSONError(DisplayCastGlobals.CONTROL_JSON_SYNTAX_ERROR);
}
else
{
String id = request.Url.Query.Substring(1);
JSONSrcSink res = null;
// Could be status of players/archivers/streamers
foreach (JSONSrcSink clnt in players)
{
if (clnt.id.Equals(id))
{
res = clnt;
break;
}
}
if (res == null)
{
foreach (JSONSrcSink clnt in archivers)
{
if (clnt.id.Equals(id))
{
res = clnt;
break;
}
}
}
if (res == null)
{
foreach (JSONSrcSink clnt in streamers)
{
if (clnt.id.Equals(id))
{
res = clnt;
break;
}
}
}
if (res == null)
{
response.StatusCode = (int)HttpStatusCode.NotFound;
response.StatusDescription = "ID: " + id + " unknown";
responseString = JSONError(DisplayCastGlobals.CONTROL_JSON_UNKNOWN_ERROR);
}
else
{
responseString = serializer.Serialize(res);
}
}
break;
case "SESSIONSTATUS":
if ((request.Url.Query == null) || (request.Url.Query.Length < 2))
{
response.StatusCode = (int)HttpStatusCode.BadRequest;
response.StatusDescription = DisplayCastGlobals.CONTROL_USAGE_SESSIONSTATUS;
responseString = JSONError(DisplayCastGlobals.CONTROL_JSON_SYNTAX_ERROR);
}
else
{
String id = request.Url.Query.Substring(1);
JSONSession res = null;
foreach (JSONSession sess in sessions)
{
if (sess.id.Equals(id))
{
res = sess;
break;
}
}
if (res == null)
{
response.StatusCode = (int)HttpStatusCode.NotFound;
response.StatusDescription = "ID: " + id + " unknown";
responseString = JSONError(DisplayCastGlobals.CONTROL_JSON_UNKNOWN_ERROR);
}
else
{
responseString = serializer.Serialize(res);
}
}
break;
case "SNAPSHOT":
if ((request.Url.Query == null) || (request.Url.Query.Length < 2))
{
response.StatusCode = (int)HttpStatusCode.BadRequest;
response.StatusDescription = DisplayCastGlobals.CONTROL_USAGE_SNAPSHOT;
responseString = JSONError(DisplayCastGlobals.CONTROL_JSON_SYNTAX_ERROR);
}
else
{
String id = request.Url.Query.Substring(1);
char[] delimiters = { '=', '&' };
String[] words = id.Split(delimiters);
if ((words.Length < 2) || (!words[0].ToUpper().Equals("ID")))
{
response.StatusCode = (int)HttpStatusCode.BadRequest;
response.StatusDescription = DisplayCastGlobals.CONTROL_USAGE_SNAPSHOT;
responseString = JSONError(DisplayCastGlobals.CONTROL_JSON_SYNTAX_ERROR);
}
else
{
NetService service = null;
foreach (NetService s in sourceServices)
{
if (s.Name.Equals(words[1]))
{
service = s;
break;
}
}
